<template>
    <div class="login_container">
        <div class="login_box">
          <!--头像区域-->
          <div class="avatar_box">
            <img src="../assets/logo.png" alt="">
          </div>
          <!--登录表单区域-->
          <el-form ref="loginFormRef" :model="loginForm" label-width="0px" class="login_form" :rules="loginFormRules">
            <el-form-item prop="username">
              <el-input v-model="loginForm.username"
                        prefix-icon="el-icon-user-solid"
                        ></el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input v-model="loginForm.password"
                        prefix-icon="el-icon-lock"
                        type="password"></el-input>
            </el-form-item>
            <!--按钮区域-->
            <el-form-item class="btns">
              <el-button type="primary" @click="login">登录</el-button>
              <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>

          </el-form>
        </div>
    </div>
</template>

<script>
import request from 'api/request.js'

export default {
  name: 'login',
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          {required: true, message: '请输入登录名称', trigger: 'blur'},
          {min: 3, max: 10, message: '长度在3到10个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入登录密码', trigger: 'blur'},
          {min: 6, max: 15, message: '长度在6到15个字符', trigger: 'blur'}
        ]
      }
    }
  },
  methods: {
    // 点击重置表单
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        const {data:res} = await request('login',this.loginForm,'post')
        if(res === null) return this.$message.error('密码错误，登陆失败！')
        this.$message.success('登录成功！')
        window.sessionStorage.setItem('token',res.data.token)
        this.$router.push('./home')
      })
    }
  }
}
</script>

<style scoped lang="less">
  .login_container {
    background-color: #2b4b6b;
    height: 100%;
  }
  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%,-50%);
      background-color: #fff;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }
  .btns {
    display: flex;
    justify-content: flex-end;
  }
  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
</style>
